Bump ci

Author: fwal

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        swift: ["5.10"]
+        swift: ["6.1.0"]
         include:
         - os: windows-latest
           swift: "5.6.3"